Laser‐induced acoustic phonon gratings in semiconductor thin films

J WANG, D C HUTCHINGS, A MILLER, E W VANSTRYLAND, K R WELFORD, I T MUIRHEAD, K L LEWIS

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Abstract

Laser induced ultrasonic standing waves are observed in molecular beam deposited ZnSe thin films using the transient grating technique. This observation is attributed to a very short trapping time for single photon absorption in the band tail. The period of the standing wave is used to determine the acoustic phonon velocity in the ZnSe thin film which indicates that it is longitudinal acoustic phonons which are excited.

Original languageEnglish
Pages (from-to)4746-4751
Number of pages6
JournalJournal of Applied Physics
Volume73
Issue number10
DOIs
Publication statusPublished - 15 May 1993

Cite this

WANG, J., HUTCHINGS, D. C., MILLER, A., VANSTRYLAND, E. W., WELFORD, K. R., MUIRHEAD, I. T., & LEWIS, K. L. (1993). Laser‐induced acoustic phonon gratings in semiconductor thin films. Journal of Applied Physics, 73(10), 4746-4751. https://doi.org/10.1063/1.353838